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Diffstat (limited to 'ReferenceCode/AcpiTables/Dptf/AcpiTables/TpchParticipant.asl')
| -rw-r--r-- | ReferenceCode/AcpiTables/Dptf/AcpiTables/TpchParticipant.asl | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/ReferenceCode/AcpiTables/Dptf/AcpiTables/TpchParticipant.asl b/ReferenceCode/AcpiTables/Dptf/AcpiTables/TpchParticipant.asl new file mode 100644 index 0000000..c8b816b --- /dev/null +++ b/ReferenceCode/AcpiTables/Dptf/AcpiTables/TpchParticipant.asl @@ -0,0 +1,113 @@ +/*++ + This file contains an 'Intel Peripheral Driver' and uniquely + identified as "Intel Reference Module" and is + licensed for Intel CPUs and chipsets under the terms of your + license agreement with Intel or your vendor. This file may + be modified by the user, subject to additional terms of the + license agreement +--*/ + +/*++ + +Copyright (c) 1999 - 2012 Intel Corporation. All rights reserved +This software and associated documentation (if any) is furnished +under a license and may only be used or copied in accordance +with the terms of the license. Except as permitted by such +license, no part of this software or documentation may be +reproduced, stored in a retrieval system, or transmitted in any +form or by any means without the express written consent of +Intel Corporation. + +Module Name: + + TpchParticipant.asl + +Abstract: + + Intel ACPI Reference Code for Dynamic Platform & Thermal Framework + +--*/ + + +Scope(\_SB.PCI0) +{ + // + // This device is currently used by DPPM policies only. + // Refer to the specific technology BIOS specification. + // + Device (TPCH) + { + Name (_ADR,0x001F0006) // Device 31, Function 6 + Name (LSTM,0) // Last temperature reported + + // _STA (Status) + // + // This object returns the current status of a device. + // + // Arguments: (0) + // None + // Return Value: + // An Integer containing a device status bitmap: + // Bit 0 - Set if the device is present. + // Bit 1 - Set if the device is enabled and decoding its resources. + // Bit 2 - Set if the device should be shown in the UI. + // Bit 3 - Set if the device is functioning properly (cleared if device failed its diagnostics). + // Bit 4 - Set if the battery is present. + // Bits 5-31 - Reserved (must be cleared). + // + Method(_STA) + { + If (LEqual(PCHD,1)){ + Return(0x0F) + } Else { + Return(0x00) + } + } + + OperationRegion(PCHT,PCI_Config,0x10,0x08) // PCH Thermal BAR + Field(PCHT,DWordAcc,NoLock,Preserve) + { + Offset(0x0), // EPBAR (Offset 10h) + STYP, 1, // Space type + ADRG, 2, // Address Range + PREF, 1, // Prefetchable + , 8, // hardwired to 0 + TBAR, 52 // Thermal BAR + } + + // Thermal Sensor Hysteresis, 3 degree Centigrade + Name(GTSH, 30) + + // _DTI (Device Temperature Indication) + // + // Conveys the temperature of a device's internal temperature sensor to the platform when a temperature trip point + // is crossed or when a meaningful temperature change occurs. + // + // Arguments: (1) + // Arg0 - An Integer containing the current value of the temperature sensor (in tenths Kelvin) + // Return Value: + // None + // + Method(_DTI, 1) + { + Store(Arg0,LSTM) + Notify(TPCH, 0x91) // notify the participant of a trip point change event + } + + // _NTT (Notification Temperature Threshold) + // + // Returns the temperature change threshold for devices containing native temperature sensors to cause + // evaluation of the _DTI object + // + // Arguments: (0) + // None + // Return Value: + // An Integer containing the temperature threshold in tenths of degrees Kelvin. + // + Method(_NTT, 0) + { + Return(2782) // 5 degree Celcius, this could be a platform policy with setup item + } + + } // End Device(TPCH) +} // End Scope(\_SB.PCI0) |